The sequences of the 5’ region of the Cytochrome c oxidase subunit I gene (COI-5P) were extracted from the BOLD Public Record Barcode Database Phylums selected : Arthropoda, Chordata, Mollusca, Nematoda, Apicomplexa & Rotifera. The sequences without taxonomic affiliation at the species level were removed, as well as those that show a unexpected word (e.g. « unclassified ») or character (e.g. « 1, 2, 3, 4, 5 … ») in a taxonomic rank. - BOLD_COI-5P_022019 : Sequences containing more than 40% of N are also removed - BOLD_COI-5P_1percentN_022019 : Sequences containing more than 1% of N are also removed. - BOLD_COI-5P_082023 contact : maxime.galan@inra.fr , sylvain.piry@inra.fr, orianne.tournayre@supagro.fr Taxon selected : Porifera, Cnidaria, Annelida, Malacostraca, Branchiopoda, Ostracoda, Maxillopoda, Mollusca, Echinodermata, Chordata, Nemertea, Brachiopoda, Bryozoa, Phoronida, Ctenophora, Chaetognatha, Hemichordata, Sipuncula, Platyhelminthes, Kinorhyncha, Ciliophora, Ochrophyta, Rhodophyta, Chlorophyta, Bacillariophyta, Myzozoa, Nematoda, Ostracoda, Foraminifera, Tardigrada - BOLD_COI-5P_marin_052022 - BOLD_COI-5P_marin_20230913 contact : aurelie-portas@etud.univ-tln.fr